Our Horn features an extremely powerful directly injected mini-compressor paired with a patented snail design to really charge and amp up the sound! All integrated into one small but powerful device! There is no bulky air compressor, only a small device that produces incredible sound! Suitable For Almost Any Vehicle! While It's the perfect upgrade for cars, our horn is also compatible with SUVs, passenger cars, boats and motorcycles. The installation process takes less than an hour and is easy to do. Instructions and everything you need is included!